Tre Monti waste disposal site in Imola
Realization of structures protecting the excavation works and removal of the V1 and V2 basins currently present in the Tre Monti waste disposal site for non-hazardous waste in Imola.
The operation envisaged the demolition of the existing concrete basins and the removal of the abutment ground at the base of the embankment and in the area around the basins.
The resulting empty space was refilled with clay compacted layer by layer, both to recreate the original morphology, and to improve the overall stability of the area, with particular reference to the embankment limiting the waste disposal site and connected works.The resulting empty space was refilled
In order to perform the excavation works required to remove the ground to the depth specified in the project, some provisional protection works were required, namely support floodgates made using two different types of structures, according to their position and long-term function:
- Retaining wall made of micro-piles provisionally supporting the excavations while ensuring stability;
- Reinforced concrete sheet-piles, with additional guarantee of hydraulic seal both in the short run, during the excavation works, and in the long run, following the refilling.
On the down-stream side, a reinforced-earth retaining wall was also built, suitable to contain the new back-fill, delimiting the area of the existing V3 basin.
The project included some further completion and finishing works, aiming to improve the waterproofing of the area and to enhance the overall stability of the embankment of the waste disposal site, as well as of existing support structures.
Services provided: Technical and administrative general inspections on the works underway and static test general inspections of the structures, pursuant to art. 67 of President Decree 380/01 and art. 7 of Law 1086/71.
Client: HERAmbiente SpA.
Site: Municipality of Imola (BO).
Year: 2018
Cost of works: 1.878 million Euros
